柯林斯词典amniotic fluid 1. N the fluid surrounding the fetus in the womb 羊水 返回 amniotic fluid剑桥词典the liquid that surrounds the embryo of a mammal , bird , or reptile 羊水（哺乳动物、鸟类或爬行动物羊膜中的液体） 返回 amniotic fluid